Under the Whyte notation for the classification of steam locomotives, 2-12-2 represents the wheel arrangement of two leading wheels on one axle (usually in a leading truck), twelve powered and coupled driving wheels on six axles, and two trailing wheels on one axle (usually in a trailing truck).

Equivalent classifications

Other equivalent classifications are:



The Deutsche Reichsbahn and later the Austrian Federal Railways operated two Class 97.4 2-12-2T tank locomotives, both built in 1941.[1]


Hanomag built 19 F10 class 2-12-2Ts for use by the Staatsspoorwegen in freight service in Java, Indonesia. They were assigned the railroad numbers 801-819/F1001-F1019.[2]


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